Chemical compound.



UNITED STATES Tatented N ovember 17, 1903.

JACOB MELLINGER, or BALTIMORE, MARYLAND.

CHEMICAL'COMPOUND.

SPECIFICATION formingpart of Letters Patent No. 74 ,5 dated November 1903- Application filed April 8, 1903. Serial No. 151.675. [No specimens.)

larly for forming means for binding or effecting the adhesion of certain ingredients or materials to form ahomogeneous mass of a character adapted for fuel. Among said materials may be mentioned coal-dust, turf, slate, lignite, peat, weeds, grass, straw, or like vegetable matter, sawdust, ashes, sand, clay, or earth; also, any kind of fibrous or carbonaceous material or minerals of any kind.

Said compound or composition is produced by dissolving 74.5 of calcined soda in five times that amount of water, combining the solution with fifty-six parts of dry-slaked lime and evaporating the solution thus produced to 1.5 specific gravity. To this mixture is added one hundred and twenty parts of infusorial earth, the whole being amalgamated or fused in a suitable crucible. The ingredients are mixed according to weight. The contents of said crucible when cold are removed, pulverized, and exposed to the action of the air, the same being frequently stirred during that time. The powder thus produced is then washed several times with cold water until the whole is completely dissolved, the same of course being placed in a suitable receptacle for that purpose. This solution is then filtered and evaporated to a specific gravity of 1.25.

This product or composition forms a highlyeftective binder, which effects the immediate combining and hardening of coal-dust or any other material which may be used as a body in forming a briquet. The briquet thus formed is dry and can be burned at once in completing the making of the same.

This composition or binderis capable of use not only with coal-dust, but with any kind of fibrous or carbonaceous material, as above noted. p

The solution above described possesses an alkaline taste, which when exposed to the action of the air is gradually converted into a gelatinous mass, which finally becomes per quet is taken out of the press it can be burned immediately.

It is here noted that my composition is used, as stated, in a cold condition and constitutes a simple and cheap binder, thus dif ferin g from all other like binders in that the latter are used in connection with heat for their application-as, for instance, with pitch or other resinous matter-none of which, however, are used in my preparation.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The described method for forming af binder for a fuel compound, which consistsin dissolving calcined soda and combining therewith dry-slaked lime; evaporating this solution to a certain specific gravity; adding to said mixture infusorial earth, fusing or amalgamating the whole, and, reducing it to a powder; and dissolving and filtering said powder and evaporating the same to a given specific gravity.

2. The described method of producing a binder for a fuel compound, which consists in dissolving 7415 calcined soda in five times that amount of water, and combining therewith fifty-six parts of dry-slaked lime; evaporating said solution to 1.5 specific gravity; adding to this mixture onehundred and twenty parts of infusorial earth; fusing 0r amalgamating the whole mass and then pul- In testimony whereof I affix my signature in presence of two witnesses.

JACOB MELLINGER.

verizing and dissolving the same, and reducing it to a specific gravity of 1.25; the ingredients being mixed according to Weight.

3. A composition of matter consisting of calcined soda, slaked lime, water, and infu- \Vitnesses:

sorial earth, compounded substantially in the CHAS. G. SCHNEPFE, manner herein described. RAY DICHTER. 

